diff --git a/keyfork/Cargo.toml b/keyfork/Cargo.toml
index 55b4a1d..30a8e35 100644
--- a/keyfork/Cargo.toml
+++ b/keyfork/Cargo.toml
@@ -17,7 +17,7 @@ qrcode-decode-backend-rqrr = ["keyfork-qrcode/decode-backend-rqrr"]
 qrcode-decode-backend-zbar = ["keyfork-qrcode/decode-backend-zbar"]
 
 sequoia-crypto-backend-nettle = ["sequoia-openpgp/crypto-nettle"]
-sequoia-crypto-backend-rust = ["sequoia-openpgp/crypto-rust"]
+sequoia-crypto-backend-rust = ["sequoia-openpgp/crypto-rust", "sequoia-openpgp/allow-experimental-crypto", "sequoia-openpgp/allow-variable-time-crypto"]
 sequoia-crypto-backend-openssl = ["sequoia-openpgp/crypto-openssl"]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html